feat: support multiwrite flash traits if configured

2 files changed, 8 insertions, 0 deletions

diff --git a/embassy-nrf/Cargo.toml b/embassy-nrf/Cargo.toml
index 6d7440519..970f62b0c 100644
--- a/embassy-nrf/Cargo.toml
+++ b/embassy-nrf/Cargo.toml
@@ -64,6 +64,11 @@ nfc-pins-as-gpio = []
 # nrf52820, nrf52833, nrf52840: P0_18
 reset-pin-as-gpio = []
 
+# Implements the MultiwriteNorFlash trait for QSPI. Should only be enabled if your external
+# flash supports the semantics described in
+# https://docs.rs/embedded-storage/0.3.1/embedded_storage/nor_flash/trait.MultiwriteNorFlash.html
+qspi-multiwrite-flash = []
+
 # Features starting with `_` are for internal use only. They're not intended
 # to be enabled by other crates, and are not covered by semver guarantees.
 
diff --git a/embassy-nrf/src/qspi.rs b/embassy-nrf/src/qspi.rs
index 5e1a4e842..f35b83628 100755
--- a/embassy-nrf/src/qspi.rs
+++ b/embassy-nrf/src/qspi.rs
@@ -605,6 +605,9 @@ impl<'d, T: Instance> NorFlash for Qspi<'d, T> {
     }
 }
 
+#[cfg(feature = "qspi-multiwrite-flash")]
+impl<'d, T: Instance> embedded_storage::nor_flash::MultiwriteNorFlash for Qspi<'d, T> {}
+
 mod _eh1 {
     use embedded_storage_async::nor_flash::{NorFlash as AsyncNorFlash, ReadNorFlash as AsyncReadNorFlash};